﻿/* 
* Copyright (c) 2010, The University of Texas at Austin
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, 
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, 
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, 
* this list of conditions and the following disclaimer in the documentation and/or other materials 
* provided with the distribution.
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* Neither the name of The University of Texas at Austin nor the names of its contributors may be 
* used to endorse or promote products derived from this software without specific prior written 
* permission.
* 
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR 
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using System.Windows.Interactivity;
using Bio.Views.Structure.Editor.Internal.Rendering;
using Bio.Views.Structure.Editor.Internal.Editing;
using Bio.Views.Structure.Editor.Internal.Selection;

namespace Bio.Views.Structure.Editor.Internal.Actions
{
    public class ResizeStructureElementAction : TriggerAction<SecondaryStructureDrawing>
    {
        public ResizeStructureElementAction() { }

        protected override void Invoke(object parameter)
        {
            ResizeStructureElementEventArgs args = parameter as ResizeStructureElementEventArgs;
            if (args != null && AssociatedObject != null)
            {
                if (args.Mode == ExecutionMode.Selected)
                {
                    if (args.HavePadding && args.HaveWidth)
                        AssociatedObject.ResizeSelectedStructureElementTo(args.Width, args.Padding);
                    else if (args.HavePadding && !args.HaveWidth)
                        AssociatedObject.ResizeSelectedStructureElementTo(-1.0, args.Padding);
                    else if (!args.HavePadding && args.HaveWidth)
                        AssociatedObject.ResizeSelectedStructureElementTo(args.Width, -1.0);
                }
                else if(args.Mode == ExecutionMode.All)
                {
                    if (args.ElementType == StructureElementSelectionMode.Helix)
                    {
                        if (args.HavePadding && args.HaveWidth)
                            AssociatedObject.ResizeAllStructureElements(args.Width, args.Padding, StructureElementSelectionMode.Helix);
                        else if (!args.HavePadding && args.HaveWidth)
                            AssociatedObject.ResizeAllStructureElements(args.Width, -1.0, StructureElementSelectionMode.Helix);
                        else if (args.HavePadding && !args.HaveWidth)
                            AssociatedObject.ResizeAllStructureElements(-1.0, args.Padding, StructureElementSelectionMode.Helix);
                    }
                    else if (args.ElementType == StructureElementSelectionMode.BasePair)
                    {
                        if (args.HaveWidth)
                            AssociatedObject.ResizeAllStructureElements(args.Width, -1.0, StructureElementSelectionMode.BasePair);
                    }
                }
            }
        }
    }
}
